IT DESTOYRED MY F ING FANS!!
There was a short that the SCP of the PSU didn't detect, and this cause the PSU to continued to supply power to it until it burned out.
To simulate this, PCGH had shorted a molex connector, and you would see it deliver a large amount of power through the cables and until it burns. It's in German, so you probably won't understand it (same with I) ; however, you could see what is happening (starts around 20 seconds in).
This issue doesn't exactly happen often, but it is often associated with single rail vs multi-rail power supplies as shown here: http://www.jonnyguru.com/forums/showthread.php?t=3990
"Short circuit protection only works if there's minimal to no resistance in the short (like two wires touching or a hot lead touching a ground like the chassis wall, etc.) If the short occurs on a PCB, in a motor, etc. the resistance in this circuit will typically NOT trip short circuit protection. What does happen is the short essentially creates a load. Without an OCP the load just increases and increases until the wire heats up and the insulation melts off and there's a molten pile of flaming plastic at the bottom of the chassis. This is why rails are split up and "capped off" in most power supplies; there is a safety concern."
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